Cheesy Low Carb Philly Cheesesteak Casserole

If you love the bold, savory flavors of a classic Philly cheesesteak but want to skip the bread and carbs, this cheesy low carb Philly cheesesteak casserole is your new go-to comfort dish. It takes everything you crave—juicy beef, sautéed peppers, onions, and melty cheese—and transforms it into a rich, satisfying baked meal.

This casserole is not just delicious—it’s also incredibly practical. It’s quick to prepare, perfect for meal prep, and packed with protein to keep you full for hours. The creamy cheese blends beautifully with the beef and vegetables, creating a dish that feels indulgent but still fits perfectly into a keto or low-carb lifestyle. Inspired by the traditional sandwich flavors of beef, cheese, and peppers , this version delivers all the taste without the carbs.

Ingredients

• 1 lb (450 g) ground beef or thinly sliced steak
• 1 tablespoon (15 ml) olive oil
• 1 medium onion (120 g), sliced
• 1 green bell pepper (120 g), diced
• 1 red bell pepper (120 g), diced
• 1/2 cup (75 g) sliced mushrooms (optional)
• 3 cloves garlic, minced
• 1 teaspoon salt
• 1/2 teaspoon black pepper
• 1/2 teaspoon paprika
• 1/2 teaspoon garlic powder
• 1 tablespoon Worcestershire sauce
• 4 oz (115 g) cream cheese
• 1/2 cup (120 ml) heavy cream
• 1 1/2 cups (150 g) shredded mozzarella cheese
• 6 slices provolone cheese (or 1 cup shredded)
• 1/4 cup (25 g) grated parmesan cheese
• 1 tablespoon fresh parsley (optional)

Equipments

• 9×13 inch baking dish
• Large skillet
• Mixing bowl
• Spatula
• Knife and cutting board
• Measuring cups and spoons

Instructions

• Preheat your oven to 375°F (190°C) and grease a baking dish lightly with oil
• Heat a large skillet over medium-high heat and add olive oil
• Add sliced onions and cook for 2–3 minutes until slightly softened
• Add bell peppers and mushrooms, cooking for another 4–5 minutes until tender
• Stir in minced garlic and cook for 30 seconds until fragrant
• Add ground beef or sliced steak and cook until browned, breaking into small pieces
• Season with salt, pepper, paprika, and garlic powder while cooking
• Stir in Worcestershire sauce to enhance flavor depth
• Drain any excess grease from the pan to avoid a heavy casserole
• Reduce heat to medium-low and add cream cheese to the skillet
• Stir continuously until cream cheese melts and coats the beef mixture
• Pour in heavy cream and mix until a smooth, creamy sauce forms
• Remove from heat once everything is well combined
• Transfer the mixture evenly into the prepared baking dish
• Sprinkle shredded mozzarella evenly across the top
• Layer provolone cheese slices over the mozzarella for extra melt
• Finish with a light sprinkle of parmesan cheese
• Bake in the oven for 20–25 minutes until cheese is melted and bubbly
• Broil for 2–3 minutes for a golden, slightly crispy top
• Remove from oven and let it rest for 5–10 minutes before serving
• Garnish with chopped parsley if desired
• Serve warm and enjoy

Recipe Information

• Prep Time: 15 minutes
• Cook Time: 25 minutes
• Total Time: 40 minutes
• Servings: 6
• Cuisine: American
• Course: Main Course

Nutrition Information (Approximate)

• Calories: 450 kcal
• Protein: 30 g
• Carbohydrates: 6 g
• Fat: 34 g
• Fiber: 1 g
• Sugar: 3 g
• Sodium: 720 mg

Flavor Profile Breakdown

• Rich and savory beef base
• Creamy and cheesy texture
• Slight sweetness from bell peppers
• Deep umami from Worcestershire sauce
• Mild garlic and spice balance

Tips for Best Results

• Use thinly sliced steak for authentic texture
• Cook vegetables until slightly caramelized for deeper flavor
• Use full-fat cheese for best creaminess
• Drain excess grease to avoid oily texture
• Let casserole rest before serving for better slicing

Variations & Substitutions

• Use chicken instead of beef for a lighter version
• Add jalapeños for heat
• Swap provolone with cheddar or gouda
• Add cauliflower rice for extra volume
• Use dairy-free cream alternatives if needed

Mistakes to Avoid

• Skipping seasoning which reduces flavor
• Overcooking meat before baking
• Adding too much liquid making it watery
• Not draining grease properly
• Cutting immediately without resting

Serving Suggestions

• Serve with a fresh side salad
• Pair with roasted vegetables
• Add avocado slices for healthy fats
• Serve over cauliflower rice
• Enjoy with keto bread

Storage Tips

• Store in airtight container in fridge for up to 4 days
• Freeze portions for up to 2 months
• Reheat in oven at 350°F for best texture
• Microwave for quick reheating

Why You’ll Love This Recipe

• Low-carb and keto-friendly
• High in protein and very filling
• One-pan easy meal
• Perfect for meal prep
• Loaded with cheesy goodness

How to Serve

• Slice into portions directly from the dish
• Serve hot for best texture
• Garnish with herbs or extra cheese
• Pair with light sides
• Great for lunch or dinner

FAQs

Can I use steak instead of ground beef?
Yes, thinly sliced ribeye or sirloin works great for a more authentic cheesesteak flavor.

Is this casserole keto-friendly?
Yes, it is low in carbs and high in fat and protein, making it perfect for keto diets.

Can I make it ahead of time?
Yes, assemble it and refrigerate, then bake when ready.

Can I freeze this casserole?
Yes, freeze in portions and reheat when needed.

What cheese works best?
Provolone and mozzarella are ideal, but cheddar or gouda also work well.

How do I prevent it from being greasy?
Drain the beef thoroughly before adding cheese and cream.

Can I add vegetables?
Yes, mushrooms, spinach, or zucchini are great additions.

How long does it last in the fridge?
Up to 4 days when stored properly.

Can I make it spicy?
Yes, add chili flakes or jalapeños for extra heat.

Is it good for meal prep?
Absolutely, it reheats well and stays flavorful.